High Quality, high capacity, light weight rechargeable DC 3.7V Li-ion 750mAh Battery. Longer battery life than the original battery that comes with the GPS. No memory effect. Can be charged or discharged as needed without loss of capacity. Overcharge protection, with built-in battery life microchip. CE Certified. Compatible with: Mio Moov 400. 12 months Manufacturer warranty. Note: Tools not included.